Scientists do not yet know what causes the emergence of circular vegetation in the Namibia. Thousands of circles, from the low-lying herbs to the Marienflusstal Valley, some reach 12 meters in diameter and bloom in 30-60 year cycles. A unique and inexplicable phenomenon of nature attributed to the “economical” behavior of plants’ water in arid climates, soil structure, salt concentrations and other various theories. In practice, an alien, unique, early landscape is obtained.
All the photos: Wikipedia